地中海大西洋蓝鳍金枪鱼的遗传多样性:来自全基因组snp和微卫星的见解。

IF 1.9 3区 生物学 Q2 BIOLOGY
Journal of Biological Research-Thessaloniki Pub Date : 2017-02-16 eCollection Date: 2017-12-01 DOI:10.1186/s40709-017-0062-2
Aglaia Antoniou, Panagiotis Kasapidis, Georgios Kotoulas, Constantinos C Mylonas, Antonios Magoulas
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引用次数: 1

摘要

背景:阐明大西洋蓝鳍金枪鱼[ABFT, Thunnus thynnus (Linnaeus, 1758)]种群结构模式是一项具有挑战性的重要任务。大多数独特的挑战源于它的生物学特性,以及它所分布的海洋领域的特性。为了制定和采取有效的保护和管理策略,迫切需要准确的信息来进行种群评估,并确定种群持久性和适应性的关键特征。大量关于地中海种群结构的ABFT遗传研究的结论颇有争议,尚未得出定论。在本研究中,研究了地中海地区ABFT基因组多样性,这是该物种繁殖最重要的地区。结果:从整个地中海收集的ABFT样本中分析全基因组snp和微卫星并没有提供遗传结构的有力证据,表明存在单一的泛疫单位。另一种观点认为,由于研究的抽样设计、所使用的标记类型以及有关物种生物学特征的分析方法的有效性/适用性或上述任何组合的影响,未能拒绝流感单位的零假设。结论:揭示ABFT种群多样性的驱动因素需要考虑物种产卵行为的重要方面,以确定适当的抽样设计。将遗传学/组学、生态学和海洋学专家聚集在一起的新方法和分析方法被认为是必要的。在海洋遗传学学科下分析ABFT遗传数据可以提供一个分析框架,在此框架下,可以识别控制ABFT招募的主要非生物和生物力量,阐明该物种复杂的种群动态,而在任何情况下,多重和连续的渔业监测都应被视为有效和长期保护ABFT的先决条件。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Genetic diversity of Atlantic Bluefin tuna in the Mediterranean Sea: insights from genome-wide SNPs and microsatellites.

Genetic diversity of Atlantic Bluefin tuna in the Mediterranean Sea: insights from genome-wide SNPs and microsatellites.

Genetic diversity of Atlantic Bluefin tuna in the Mediterranean Sea: insights from genome-wide SNPs and microsatellites.

Genetic diversity of Atlantic Bluefin tuna in the Mediterranean Sea: insights from genome-wide SNPs and microsatellites.

Background: Elucidating the patterns of the Atlantic Bluefin tuna [ABFT, Thunnus thynnus (Linnaeus, 1758)] population structure constitutes a challenging task of great importance. Most of the unique challenges stem from its biology, as well as the attributes of the marine realm in which it disperses. Accurate information is urgently needed for stock assessment, and the identification of critical features to the persistence and adaptation of populations in order to formulate and adopt effective strategies for ABFT conservation and management. Conclusions of a great number of ABFT genetic studies on the Mediterranean Sea stock structure are rather controversial and not yet conclusive. In this study, ABFT genomic diversity was investigated in the Mediterranean Sea, which is the most important area for the species' reproduction.

Results: Analyzing genome-wide SNPs and microsatellites from ABFT samples collected throughout the Mediterranean Sea did not provide strong evidence of genetic structure, pointing towards the existence of a single panmictic unit. An alternative view would recognize a failure to reject the null hypothesis of a panmictic unit as an effect of the study's sampling design, the type of markers used, and the effectiveness/suitability of analysis methods in respect to the species biological characteristics or any combination of the above.

Conclusions: Unravelling the drivers of ABFT population diversity would require the consideration of important aspects of the species spawning behavior for the determination of the appropriate sampling design. Novel approaches and methods of analysis that will bring together experts in genetics/-omics, ecology and oceanography are deemed necessary. Analyzing ABFT genetic data under the discipline of seascape genetics could provide the analysis framework under which major abiotic and biotic forces controlling ABFT recruitment could be identified, elucidating the complicated population dynamics of the species, while multiple and continuous fisheries monitoring should in all cases be considered as a prerequisite in order to achieve efficient and long-term ABFT conservation.

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来源期刊
CiteScore
5.20
自引率
0.00%
发文量
0
审稿时长
>12 weeks
期刊介绍: Journal of Biological Research-Thessaloniki is a peer-reviewed, open access, international journal that publishes articles providing novel insights into the major fields of biology. Topics covered in Journal of Biological Research-Thessaloniki include, but are not limited to: molecular biology, cytology, genetics, evolutionary biology, morphology, development and differentiation, taxonomy, bioinformatics, physiology, marine biology, behaviour, ecology and conservation.
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